I think you mean keyword-only, Alex On Tue., 17 Sep. 2019, 4:11 pm Alexandre Gramfort, < alexandre.gramf...@inria.fr> wrote:
> Yes I am +1 for positional arguments for the __init__ of the estimators. > > Alex > Albert: my position when reviewing changes in accordance with this SLEP would be to (a) perhaps get usage evidence as discussed in the SLEP pull request review; and (b) apply a rule of thumb like "are the semantics reasonably clear when the argument is passed positionally?" I think they are clear for PCA's components, for Pipeline's steps, and for GridSearchCV's estimator and parameter grid. Other parameters of those estimators seem more suitable for keyword-only. Trickier is whether n_components in TSNE should follow PCA in being positional... It's not as commonly set by users. >
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